Fuel Economy, Hypermiling, EcoModding News and Forum - EcoModder.com - View Single Post - Will replacing my o2 sensor improve fuel economy / MPG?

TheOutdoorAdventure · 09-14-2016, 05:59 PM

So I've been doing some mods on my 2004 civic DX 5-speed, but I've been running with a dead and disconnected o2 sensor for... 100000 km?

I'm currently getting about 39 mpg as it is, but would a working o2 sensor on the civic significantly improve that number? The o2 sensor for this car is ~$170 CAD ($93 USD), so it's not a cheap fix. It's worth doing if I'll get a significant improvement, as I travel 150km a day for work, but not if it'll only give a minor boost.

What's your experience?

09-14-2016, 05:59 PM	#1 (permalink)
TheOutdoorAdventure Ecogeek in training Join Date: Sep 2013 Location: BC, Canada Posts: 14 Trout - '04 Honda Civic DX 90 day: 39.39 mpg (US) Thanks: 2 Thanked 0 Times in 0 Posts	Will replacing my o2 sensor improve fuel economy / MPG? So I've been doing some mods on my 2004 civic DX 5-speed, but I've been running with a dead and disconnected o2 sensor for... 100000 km? I'm currently getting about 39 mpg as it is, but would a working o2 sensor on the civic significantly improve that number? The o2 sensor for this car is ~$170 CAD ($93 USD), so it's not a cheap fix. It's worth doing if I'll get a significant improvement, as I travel 150km a day for work, but not if it'll only give a minor boost. What's your experience? Last edited by MetroMPG; 09-15-2016 at 01:52 PM.. Reason: (small title edit)